Fidlock Twist water bottles have a magnetic connector that guides the bottle to snap securely onto a magnet mount attached to the bicycle frame and to detach easily by turning clockwise. The system is especially practical on full-suspension mountain bikes and small-frame bikes where space for a traditional bottle cage is limited. Fidlock bottles in our selection have capacities of 450ml -800ml and can be ordered either with the magnetic mount or without the mount (single bottle). Mounts/attachments are also available as spare parts.